Atomistic computer simulation of the growth of helium platelets in nickel
Atomistic computer simulation of the growth of helium platelets in nickel
复制标题
镍中氦片生长的原子计算机模拟
DOI：
10.1080/13642819108205565
复制
发表时间：
1991
期刊：
影响因子：
--
通讯作者：
L. Stals
中科院分区：
文献类型：
--
作者：
M. D'Olieslaeger;G. Knuyt;L. Schepper;L. Stals
摘要为了研究氦团聚体在镍中的成核和二维生长模式，我们进行了静态计算机模拟。这些模拟的结果表明，一个充满氦的聚集体倾向于在其外缘驱逐邻近的原子。这些发射的原子向最近的八面体位置的方向移动，并且确定它们与团簇结合在一起。结果表明，充氦聚集体趋向于平面生长，发射原子形成间隙环。二维生长与封闭填充平面平行。
Abstract In order to study the nucleation and the two-dimensional growth mode of helium aggregates in nickel, we have performed static computer simulations. The results of these simulations show that a helium-filled aggregate tends to expel neighbouring atoms at its outer edges. These emitted atoms are displaced in the direction of a nearest octahedral position and it is established that they are bound to the cluster. The results indicate that a helium-filled aggregate tends to grow in a planar way and that an interstitial loop is formed by the emitted atoms. The two-dimensional growth occurs parallel with the closed-packed planes.